Why is Yash Highvoltage falling/rising?

As of 17-Sep, Yash Highvoltage Ltd's stock price is currently at Rs 485.40, reflecting an increase of Rs 1.9, or 0.39%. The stock has been gaining for the last two days, with a total return of 0.82% during this period. However, it has underperformed its sector by 0.84% today. The stock's performance over the past week shows a slight increase of 0.08%, but it has declined by 7.70% over the past month. Year-to-date, the stock has performed exceptionally well, with an increase of 81.76%. Despite these gains, there has been a notable decrease in investor participation, as evidenced by a 9.36% drop in delivery volume compared to the five-day average.
Broader Market Context: In comparison to the benchmark Sensex, which has risen by 1.56% over the past week and 2.60% over the past month, Yash Highvoltage's short-term performance has lagged behind. The Sensex has shown a year-to-date increase of 5.83%, indicating a stronger overall market performance relative to Yash Highvoltage's recent struggles. While the stock remains liquid enough for trading, the combination of falling investor participation and underperformance against the sector suggests that market sentiment may be cautious despite the stock's impressive year-to-date gains.